I don’t think it’s interesting, makes me feel that he’s just making fun of Japanese. He doesn’t seem to know Japanese language, people and culture well. He’s just making his opinion out of his own poor experience with prejudice and is not considering Japanese point of view. Even it looks like a mere jumble of rumor on Japanese. It’s better to read some manga, I think. And he seems just don’t know what it is to learn foreign language and culture. It requires fresh and liberal curiosity to understand correctly, patience to keep efforts making progress steadily. Anyway, here’s just what’ve I found.http://bhn.jpn.org/nippon/index.html
‘bout Russiahttp://bhn.jpn.org/others/reibun.html